Device for developing roll-films.



' LE ROY W. KELSAY.

DEVICE FOR DEVELOP ING ROLL FILMS. APPLICATION FILED FEB. 29. 1916.

' nvi/mron ATTORNEY wlrlvessfs;

Patented Jan. 16, 1917.

' 2. is asectional view on line 22 ofFig. 1

To all whom it may concern:

UNITED STATES PATENT OFFICE- LE ROY W. KELSAY, OF NEW YOBK,.N. Y.,ASSIGNOIB OF ONE-HALF '10 JOHN I4. GRINDER or rmw roman. Y. r mtvronronnnvnnorme Bonn-runs.

. Specification of item Patent.

J Patented Jan.'16 1911.

.pplleatlon fllecl February 29,1918 Serial No. 81,251.

Be it known that I, Ln RoY W. KuLsAx, a

citizen of the United States of Americafree siding at New York city, NewYork, have invented certain new and useful Improve 'ments in Devices forDeveloping Roll-Films,

of whichthe following is a specification.

This invention relates to a device for developing roll films, and hasfor its object the providing of a construction which will allow a betterand quicker development of a film.

Another ob ect in view is to provide a construction whereby the film'maybe held in a substantially spirally wound condition with the turns ofthe spiral separate, and

thoroughly developed in a comparatively small container.

A still further object in view is to provide a device for receiving a.roll film, u on which the film willautomatically adjust itself with thelayers spaced apart so that the developand fixing solution ma be easilyand quickly applied to the sensitive material and it may be easilyrinsed to cleanse it when developed and fixed.

Figure 1. is a longitudinal vertical sectional view of one form of mydevice. Fig.

sectional view on line 33 of Fig. 1 minus the upper part of the disk 3,which is broken away to give space. Fig. 4. is a vertical, longitudinal,sectional view of a simple form of parts of my device. Fig. 5. is aperspective view illustrating the method of applying the film upon theholder. Fig. 6. is a perspective view of a developing, fixing andwashing machine and associated parts. Fi 7. is a erspective view showinghow the m is bemg washed after the same has been passed through thefixing bath. a I

1 indicates the holder as an entirety and 2 and 3 the end members whichare preferably thin disks spirally corrugated as at 4 and 5,respectively, as shown in Figs. 2 and 3. In

the corrugations 4 is arranged a plurality of groove, looking at the endfrom inside of the.

ture in end 2 so t holder, though I do not limitimyself thatarrangement.

, Arranged centrally of the holder is a tubullar member Shaving a slot 9and a threaded extension 10 which 1projects through an aper- 15 of tube.8. The end member 15 has also,

threaded therein, the end of a projecting tubular member '16 which actsas a nut for clampm the end 3 in position and also as a at the clampingnut 11' tubular inlet member for fluid, hereinafter fully described. Thecentering pins 12 and 14 are very desirable as the entrance portrons 17and 18 (Figs. 2 and 3) should be opposite each other in order that theend of the film 19 (Fig. 5) may bepro erlositioned andfcaused to passspirallyr und .member 8, the same following the various grooves in theends 2 and 3.. The natural tendency to curl of the film 19, causes thefilm to easily follow these grooves by a slight pressure on the' film.

' 'onsidering the spiral groove of one disk,

as that receiving the film, the com lemental disk is the means forholdin the m in the spiral groove of the disk w ich is opposite to it,though Iv donot limit myself to means of that exact form. v 4

In place of the form thus'far described, I may use a simple tube, andspirally grooved d's s secured thereto as seen in Fig. 4.

After the film has been exposed in the usual manner the same is causedto take its position on the holder 1, as shown in Fig. '5

and in dotted lines in Fig. '1. This may be done by entering the film inthe groove, unrolling it to the full length and then feeding it towardthe holder. The resilience of the film will cause it to wind itself upin the spiral grooves, and that without touching the holder except onthe edges of the film, the inclined walls ofthe groove preventing anyface contact and thus avoidingany injury to the impression on the film.

' The disksshould be separated just enough to permit the entry of thefilm, with a .clearance sufficient to avoid friction. The holder,together with the film, is then placed in the container 20 whichcontains a sufficient amount of developing fluid to entirely sub-.

merge the container. The solution may freely enter the apertures'6' and7 and thus uickly come in contact with all parts of t e sensitivematerial on the film. After the film'has been in the developing solutionfor the desired length of time it is removed and, if'de'sired, dipped inwater so '22 is inverted so that the stem 23 may fit 'over member 16, asshown in Fig; 7, thus providing a funnel. It may then e placed under afaucet and the water is then turned on by opening the spigot 24, wherebyclean running water may be continuously supplied to the interior of tube8 and caused to pass out opening 9 and thence circulate through v thevarious layers of the film. Of course,

some of the water escapes out of openings 5 and 6, but there will be athorough washing in a minimum amount of time of the entire surface ofthe film. It is to be noted that the developing, fixing and'washing aredone in a very small space and yet all of the parts of the film arethoroughly acted on in such a-manner as to obtain the best results.Moreover, the film need not be touched from the time it is placed in theholder which protects it from damage during the developing, and thefingers need not touch the fluids used, thereby avoiding the staining orpoisoning by said fluids. Y

What I claim is 1.- In a device of the character described,

a holder provided with a spiral groove having'inclined walls, forreceiving the edge of a film, whereby the film may be wound thereon sothat there will be a space between consecutive layers, and means forholding the film in the spiral groove.

2. In a device of the character described, a holder comprising a pair ofspaced end members having evenly set spirals thereon for guiding a filmas it is wound on the holder, the turns of the spiral being fixedlysecured in positions definitely separated by a space wider than thethickness of a film, and means for holding. said members in a givenposition.

3. In a device of the character described, a holder provided with apair-of spaced end members provided with registerin spiral grooveshaving inclined walls an for holding said ends in a predeterminedposition.

4. In a device of the character described, a holder provided with a pairof spaced end The film and the holder are then: placed backin thecontainer 21 and the 11d means 7 a holder provided with end members asset forth and presenting spiral grooves registering one with the otherand adapted to receive the edges of a film, said grooves having the samespiral form, whereby the film may be started in the outer groove andmoved so as to be spirally wound, therein, and means for holding saidend members spaced a predetermined distance apart.

6. In a device of the character described, a tubular member, providedwith an outlet between its ends and an inlet at one end, end memberssecured to said tubular member, at substantially right angles to itsaxis, and provided with fixed projections, arranged as described, in.form to bound a spiral groove opening into the space into Which theoutlet from the tubular member leads, all substantially as set forth,whereby said outlet and said groove constitute a fixed continuously'openpassage from the tubular member to the outer end of the spiral groove.

7 In a device of the character described, a holder comprising endmembers rovided with means for receiving and' holding in place, a filmwound in a spiral, said end members having apertures arranged therein,and adapted to permit a fluid to pass between the coils of the film, andmeans for holding the said end members a predetermined distance apart.

8. In a device of the character described, a holder formed withcorrugated end members, the cor ations having inclined walls and being aanged in spirals, the s iral of one end being opposite the spiral o theother end whereby there are spiral grooves facing each other adapted toreceive the edges of-a film whereby it is permitted to pass on and toassume a coiled condition with the layers spaced apart, each of said endmembers being formed with a plurality of apertures, and means for holdmgsaid end members a predetermined distance apart, said means beingprovided with a passageway therein, adapted to permit the passage of thefluid between said end members within the coiled film.

9. In a device of the character described,

a holder provided with end members formed with grooves for receiving theedges of a coiled film, and provided with apertures, a

receptacle for receiving said holder, and arranged to contain a solutionadated -to act on the film, and passages substantlally as a holderformed with ends adapted to hold both the edges of a coiling film, ahollow supply member having'a projection extending beyond one of saidends, a container for receiving said holder, and a funnelmember providedwith a body and an extension being adapted to fit the extension on theholder whereby fluid may be guided to a position in said holder andwithin the coiled film, one

side of said funnel member being arranged asset forth to fit the holderextension and the other so that the body will act as a cap for saidcontainer.

- 11. Ina device of the character described,

' a holder, provided with end members and a February 1916.

LE ROY W. KELSAY.

